vtkVolumeRayCastMapper Class Reference

#include <vtkVolumeRayCastMapper.h>

Inheritance diagram for vtkVolumeRayCastMapper:

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Collaboration diagram for vtkVolumeRayCastMapper:

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List of all members.

Detailed Description

A slow but accurate mapper for rendering volumes.

This is a software ray caster for rendering volumes in vtkImageData.

See also:: vtkVolumeMapper

Examples:: vtkVolumeRayCastMapper (Examples)

Tests:: vtkVolumeRayCastMapper (Tests)

Definition at line 83 of file vtkVolumeRayCastMapper.h.


Public Types
typedef vtkVolumeMapper	Superclass
Public Member Functions
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
void	Render (vtkRenderer , vtkVolume )
void	ReleaseGraphicsResources (vtkWindow *)
float	GetZeroOpacityThreshold (vtkVolume *vol)

virtual void	SetSampleDistance (double)
virtual double	GetSampleDistance ()

virtual void	SetVolumeRayCastFunction (vtkVolumeRayCastFunction *)
virtual vtkVolumeRayCastFunction *	GetVolumeRayCastFunction ()

virtual void	SetGradientEstimator (vtkEncodedGradientEstimator *gradest)
virtual vtkEncodedGradientEstimator *	GetGradientEstimator ()

virtual vtkEncodedGradientShader *	GetGradientShader ()

virtual void	SetImageSampleDistance (double)
virtual double	GetImageSampleDistance ()

virtual void	SetMinimumImageSampleDistance (double)
virtual double	GetMinimumImageSampleDistance ()

virtual void	SetMaximumImageSampleDistance (double)
virtual double	GetMaximumImageSampleDistance ()

virtual void	SetAutoAdjustSampleDistances (int)
virtual int	GetAutoAdjustSampleDistances ()
virtual void	AutoAdjustSampleDistancesOn ()
virtual void	AutoAdjustSampleDistancesOff ()

void	SetNumberOfThreads (int num)
int	GetNumberOfThreads ()

virtual void	SetIntermixIntersectingGeometry (int)
virtual int	GetIntermixIntersectingGeometry ()
virtual void	IntermixIntersectingGeometryOn ()
virtual void	IntermixIntersectingGeometryOff ()

virtual float	GetGradientMagnitudeScale ()
virtual float	GetGradientMagnitudeBias ()
virtual float	GetGradientMagnitudeScale (int)
virtual float	GetGradientMagnitudeBias (int)
Static Public Member Functions
static vtkVolumeRayCastMapper *	New ()
static int	IsTypeOf (const char *type)
static vtkVolumeRayCastMapper *	SafeDownCast (vtkObject *o)
Protected Member Functions
	vtkVolumeRayCastMapper ()
	~vtkVolumeRayCastMapper ()
virtual void	ReportReferences (vtkGarbageCollector *)
void	UpdateShadingTables (vtkRenderer ren, vtkVolume vol)
void	ComputeMatrices (vtkImageData data, vtkVolume vol)
int	ComputeRowBounds (vtkVolume vol, vtkRenderer ren)
void	StoreRenderTime (vtkRenderer ren, vtkVolume vol, float t)
float	RetrieveRenderTime (vtkRenderer ren, vtkVolume vol)
int	ClipRayAgainstVolume (vtkVolumeRayCastDynamicInfo *dynamicInfo, float bounds[6])
void	InitializeClippingPlanes (vtkVolumeRayCastStaticInfo staticInfo, vtkPlaneCollection planes)
int	ClipRayAgainstClippingPlanes (vtkVolumeRayCastDynamicInfo dynamicInfo, vtkVolumeRayCastStaticInfo staticInfo)
double	GetZBufferValue (int x, int y)
Protected Attributes
vtkVolumeRayCastFunction *	VolumeRayCastFunction
vtkEncodedGradientEstimator *	GradientEstimator
vtkEncodedGradientShader *	GradientShader
vtkRayCastImageDisplayHelper *	ImageDisplayHelper
double	SampleDistance
double	ImageSampleDistance
double	MinimumImageSampleDistance
double	MaximumImageSampleDistance
int	AutoAdjustSampleDistances
double	WorldSampleDistance
int	ScalarDataType
void *	ScalarDataPointer
vtkMultiThreader *	Threader
vtkMatrix4x4 *	PerspectiveMatrix
vtkMatrix4x4 *	ViewToWorldMatrix
vtkMatrix4x4 *	ViewToVoxelsMatrix
vtkMatrix4x4 *	VoxelsToViewMatrix
vtkMatrix4x4 *	WorldToVoxelsMatrix
vtkMatrix4x4 *	VoxelsToWorldMatrix
vtkMatrix4x4 *	VolumeMatrix
vtkTransform *	PerspectiveTransform
vtkTransform *	VoxelsTransform
vtkTransform *	VoxelsToViewTransform
int	ImageViewportSize [2]
int	ImageMemorySize [2]
int	ImageInUseSize [2]
int	ImageOrigin [2]
unsigned char *	Image
int *	RowBounds
int *	OldRowBounds
float *	RenderTimeTable
vtkVolume **	RenderVolumeTable
vtkRenderer **	RenderRendererTable
int	RenderTableSize
int	RenderTableEntries
int	IntermixIntersectingGeometry
float *	ZBuffer
int	ZBufferSize [2]
int	ZBufferOrigin [2]
float	MinimumViewDistance
Friends
VTK_THREAD_RETURN_TYPE	VolumeRayCastMapper_CastRays (void *arg)

Member Typedef Documentation

typedef vtkVolumeMapper vtkVolumeRayCastMapper::Superclass

Reimplemented from vtkVolumeMapper.

Definition at line 87 of file vtkVolumeRayCastMapper.h.

Constructor & Destructor Documentation

vtkVolumeRayCastMapper::vtkVolumeRayCastMapper ( ) [protected]

vtkVolumeRayCastMapper::~vtkVolumeRayCastMapper ( ) [protected]

Member Function Documentation

static vtkVolumeRayCastMapper* vtkVolumeRayCastMapper::New ( ) [static]

Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

Reimplemented from vtkAlgorithm.

virtual const char* vtkVolumeRayCastMapper::GetClassName ( ) [virtual]

Reimplemented from vtkVolumeMapper.

static int vtkVolumeRayCastMapper::IsTypeOf ( const char * name ) [static]

Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.

Reimplemented from vtkVolumeMapper.

virtual int vtkVolumeRayCastMapper::IsA ( const char * name ) [virtual]

Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.

Reimplemented from vtkVolumeMapper.

static vtkVolumeRayCastMapper* vtkVolumeRayCastMapper::SafeDownCast ( vtkObject * o ) [static]

Reimplemented from vtkVolumeMapper.

void vtkVolumeRayCastMapper::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)			`[virtual]`

Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkVolumeMapper.

virtual void vtkVolumeRayCastMapper::SetSampleDistance ( double ) [virtual]

Set/Get the distance between samples. This variable is only used for sampling ray casting methods. Methods that compute a ray value by stepping cell-by-cell are not affected by this value.

virtual double vtkVolumeRayCastMapper::GetSampleDistance ( ) [virtual]

Set/Get the distance between samples. This variable is only used for sampling ray casting methods. Methods that compute a ray value by stepping cell-by-cell are not affected by this value.

virtual void vtkVolumeRayCastMapper::SetVolumeRayCastFunction ( vtkVolumeRayCastFunction * ) [virtual]

Get / Set the volume ray cast function. This is used to process values found along the ray to compute a final pixel value.

virtual vtkVolumeRayCastFunction* vtkVolumeRayCastMapper::GetVolumeRayCastFunction ( ) [virtual]

Get / Set the volume ray cast function. This is used to process values found along the ray to compute a final pixel value.

virtual void vtkVolumeRayCastMapper::SetGradientEstimator ( vtkEncodedGradientEstimator * gradest ) [virtual]

Set / Get the gradient estimator used to estimate normals

virtual vtkEncodedGradientEstimator* vtkVolumeRayCastMapper::GetGradientEstimator ( ) [virtual]

Set / Get the gradient estimator used to estimate normals

virtual vtkEncodedGradientShader* vtkVolumeRayCastMapper::GetGradientShader ( ) [virtual]

Get the gradient shader.

virtual void vtkVolumeRayCastMapper::SetImageSampleDistance ( double ) [virtual]

Sampling distance in the XY image dimensions. Default value of 1 meaning 1 ray cast per pixel. If set to 0.5, 4 rays will be cast per pixel. If set to 2.0, 1 ray will be cast for every 4 (2 by 2) pixels.

virtual double vtkVolumeRayCastMapper::GetImageSampleDistance ( ) [virtual]

Sampling distance in the XY image dimensions. Default value of 1 meaning 1 ray cast per pixel. If set to 0.5, 4 rays will be cast per pixel. If set to 2.0, 1 ray will be cast for every 4 (2 by 2) pixels.

virtual void vtkVolumeRayCastMapper::SetMinimumImageSampleDistance ( double ) [virtual]

This is the minimum image sample distance allow when the image sample distance is being automatically adjusted

virtual double vtkVolumeRayCastMapper::GetMinimumImageSampleDistance ( ) [virtual]

This is the minimum image sample distance allow when the image sample distance is being automatically adjusted

virtual void vtkVolumeRayCastMapper::SetMaximumImageSampleDistance ( double ) [virtual]

This is the maximum image sample distance allow when the image sample distance is being automatically adjusted

virtual double vtkVolumeRayCastMapper::GetMaximumImageSampleDistance ( ) [virtual]

This is the maximum image sample distance allow when the image sample distance is being automatically adjusted

virtual void vtkVolumeRayCastMapper::SetAutoAdjustSampleDistances ( int ) [virtual]

If AutoAdjustSampleDistances is on, the the ImageSampleDistance will be varied to achieve the allocated render time of this prop (controlled by the desired update rate and any culling in use).

virtual int vtkVolumeRayCastMapper::GetAutoAdjustSampleDistances ( ) [virtual]

If AutoAdjustSampleDistances is on, the the ImageSampleDistance will be varied to achieve the allocated render time of this prop (controlled by the desired update rate and any culling in use).

virtual void vtkVolumeRayCastMapper::AutoAdjustSampleDistancesOn ( ) [virtual]

If AutoAdjustSampleDistances is on, the the ImageSampleDistance will be varied to achieve the allocated render time of this prop (controlled by the desired update rate and any culling in use).

virtual void vtkVolumeRayCastMapper::AutoAdjustSampleDistancesOff ( ) [virtual]

If AutoAdjustSampleDistances is on, the the ImageSampleDistance will be varied to achieve the allocated render time of this prop (controlled by the desired update rate and any culling in use).

void vtkVolumeRayCastMapper::SetNumberOfThreads ( int num )

Set/Get the number of threads to use. This by default is equal to the number of available processors detected.

int vtkVolumeRayCastMapper::GetNumberOfThreads ( )

Set/Get the number of threads to use. This by default is equal to the number of available processors detected.

virtual void vtkVolumeRayCastMapper::SetIntermixIntersectingGeometry ( int ) [virtual]

If IntermixIntersectingGeometry is turned on, the zbuffer will be captured and used to limit the traversal of the rays.

virtual int vtkVolumeRayCastMapper::GetIntermixIntersectingGeometry ( ) [virtual]

If IntermixIntersectingGeometry is turned on, the zbuffer will be captured and used to limit the traversal of the rays.

virtual void vtkVolumeRayCastMapper::IntermixIntersectingGeometryOn ( ) [virtual]

If IntermixIntersectingGeometry is turned on, the zbuffer will be captured and used to limit the traversal of the rays.

virtual void vtkVolumeRayCastMapper::IntermixIntersectingGeometryOff ( ) [virtual]

If IntermixIntersectingGeometry is turned on, the zbuffer will be captured and used to limit the traversal of the rays.

void vtkVolumeRayCastMapper::Render	(	vtkRenderer *	,
		vtkVolume *
	)			`[virtual]`

WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE Initialize rendering for this volume.

Implements vtkVolumeMapper.

void vtkVolumeRayCastMapper::ReleaseGraphicsResources ( vtkWindow * ) [virtual]

WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE Release any graphics resources that are being consumed by this mapper. The parameter window could be used to determine which graphic resources to release.

Reimplemented from vtkVolumeMapper.

float vtkVolumeRayCastMapper::GetZeroOpacityThreshold ( vtkVolume * vol )

WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE Return the scalar value below which all opacities are zero

virtual float vtkVolumeRayCastMapper::GetGradientMagnitudeScale ( ) [virtual]

WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE Values needed by the volume

Reimplemented from vtkAbstractVolumeMapper.

virtual float vtkVolumeRayCastMapper::GetGradientMagnitudeBias ( ) [virtual]

WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE Values needed by the volume

Reimplemented from vtkAbstractVolumeMapper.

virtual float vtkVolumeRayCastMapper::GetGradientMagnitudeScale ( int ) [inline, virtual]

WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE Values needed by the volume

Reimplemented from vtkAbstractVolumeMapper.

Definition at line 182 of file vtkVolumeRayCastMapper.h.

virtual float vtkVolumeRayCastMapper::GetGradientMagnitudeBias ( int ) [inline, virtual]

WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE Values needed by the volume

Reimplemented from vtkAbstractVolumeMapper.

Definition at line 184 of file vtkVolumeRayCastMapper.h.

virtual void vtkVolumeRayCastMapper::ReportReferences ( vtkGarbageCollector * ) [protected, virtual]

Reimplemented from vtkAlgorithm.

void vtkVolumeRayCastMapper::UpdateShadingTables	(	vtkRenderer *	ren,
		vtkVolume *	vol
	)			`[protected]`

void vtkVolumeRayCastMapper::ComputeMatrices	(	vtkImageData *	data,
		vtkVolume *	vol
	)			`[protected]`

int vtkVolumeRayCastMapper::ComputeRowBounds	(	vtkVolume *	vol,
		vtkRenderer *	ren
	)			`[protected]`

void vtkVolumeRayCastMapper::StoreRenderTime	(	vtkRenderer *	ren,
		vtkVolume *	vol,
		float	t
	)			`[protected]`

float vtkVolumeRayCastMapper::RetrieveRenderTime	(	vtkRenderer *	ren,
		vtkVolume *	vol
	)			`[protected]`

int vtkVolumeRayCastMapper::ClipRayAgainstVolume	(	vtkVolumeRayCastDynamicInfo *	dynamicInfo,
		float	bounds[6]
	)			`[protected]`

void vtkVolumeRayCastMapper::InitializeClippingPlanes	(	vtkVolumeRayCastStaticInfo *	staticInfo,
		vtkPlaneCollection *	planes
	)			`[protected]`

int vtkVolumeRayCastMapper::ClipRayAgainstClippingPlanes	(	vtkVolumeRayCastDynamicInfo *	dynamicInfo,
		vtkVolumeRayCastStaticInfo *	staticInfo
	)			`[protected]`